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torin
Tux's lil' helper
Joined: 03 Feb 2003
Posts: 119
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 Posted: Sun Jul 19, 2009 9:39 pm Post subject: [SOLVED] trouble running kvm guests simultaneously |
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Hello,
I have 2 kvm guests (debian) set up on my gentoo host.
If I run either one of them everything is just fine but when I run both of them at the same time, one always has trouble being accessed:
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ping debian_one
ping statistics ---
24 packets transmitted, 6 received, 75% packet loss, time 23000ms
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Whenever I kill the other one it runs fine though:
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kill debian_two
ping debian_one
ping statistics ---
24 packets transmitted, 24 received, 0% packet loss, time 22999ms
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I start the 2 guests as follows:
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kvm debian_HD_amd64_test.img -net nic, macaddr=52:54:00:12:34:66 -net tap,ifname=qtap1,script=no,downscript=no -m 2048 -boot c &
kvm debian_HD_amd64_prod.img -net nic, macaddr=52:54:00:12:34:57 -net tap,ifname=qtap0,script=no,downscript=no -m 2048 -boot c &
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As you can see they both have different mac-addresses so there is no collision there.
ifconfig on my gentoo-host:
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br0 Link encap:Ethernet HWaddr 8a:94:48:d6:76:f1
inet addr:188.40.45.228 Bcast:188.40.45.255 Mask:255.255.255.192
inet6 addr: fe80::1893:43ff:fe98:801d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:502615 errors:0 dropped:0 overruns:0 frame:0
TX packets:1044589 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:99647846 (95.0 MiB) TX bytes:1364215918 (1.2 GiB)
qtap0 Link encap:Ethernet HWaddr 9a:0d:ab:12:b8:0a
inet6 addr: fe80::980d:abff:fe12:b80a/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:809 errors:0 dropped:0 overruns:0 frame:0
TX packets:1107 errors:0 dropped:86 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:125201 (122.2 KiB) TX bytes:113645 (110.9 KiB)
qtap1 Link encap:Ethernet HWaddr 8a:94:48:d6:76:f1
inet6 addr: fe80::8894:48ff:fed6:76f1/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:8115 errors:0 dropped:0 overruns:0 frame:0
TX packets:9763 errors:0 dropped:330 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:3959806 (3.7 MiB) TX bytes:1752664 (1.6 MiB)
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Any hints?
Last edited by torin on Mon Jul 20, 2009 5:42 pm; edited 1 time in total |
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Mad Merlin
Veteran
Joined: 09 May 2005
Posts: 1155
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| Posted: Sun Jul 19, 2009 11:24 pm Post subject: Re: trouble running kvm guests simultaneously |
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| torin wrote: |
I start the 2 guests as follows:
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kvm debian_HD_amd64_test.img -net nic, macaddr=52:54:00:12:34:66 -net tap,ifname=qtap1,script=no,downscript=no -m 2048 -boot c &
kvm debian_HD_amd64_prod.img -net nic, macaddr=52:54:00:12:34:57 -net tap,ifname=qtap0,script=no,downscript=no -m 2048 -boot c &
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I don't think you can put the space in there between the -net nic, and macaddr=...
Try this:
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kvm debian_HD_amd64_test.img -net nic,macaddr=52:54:00:12:34:66 -net tap,ifname=qtap1,script=no,downscript=no -m 2048 -boot c &
kvm debian_HD_amd64_prod.img -net nic,macaddr=52:54:00:12:34:57 -net tap,ifname=qtap0,script=no,downscript=no -m 2048 -boot c &
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torin
Tux's lil' helper
Joined: 03 Feb 2003
Posts: 119
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| Posted: Mon Jul 20, 2009 5:41 pm Post subject: re |
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that worked!
thanks for the hint! |
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